Tubular lantern.



A. R. PRITOHARD.

TUBULAR LANTERN. I APPLICATION FILED BEPT.1B. 1911 1,015,398. I fanented Jan.23,1 912.

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TUBULAR LANTERN.

Specification of Letters Patent. ,hpplication med September 18, 1911. Serial No. 649,897.

It) all whom it myczmcem:

Be it known that I, ALBERT R. Parrcnaan, a citizen of the-United States, and resident of Rochester, in the'county of Monroe and .5 State of New York, have invented certain new. and useful Improvements in Tubular Lanterns, of which the following is a speciation., v This invention relates to tubular lanterns "19 in which the air-chamber is so formed that ,it may be locked to both theoil-font and the burnerwup by a single seam. I

, The ob ect of the invention is to facilitate v the manufacture of lanterns of this type,

and to this end I emplo cooperating projections and recesses on t e air-chamber and the'oiI-font, by which the air-chamber is accurately, positioned in proper relation to the oil-font during the manufacture of the lantern.

1 is a. vertical, .m

In the aceompan ing'drawihgsg-Figure inventiqa; and Fig. 2 is a plan-view of the I As the invention is applicable to an tuonly'a portion of the lantern is shown in the 1" this portion including the oilthe aircharhber, the air-tubes and the r-cup. .1 The oil-fonti4 may be of any ordinary or suitable form, and. 1t is provided with the a u opening 5 to receive the wick. The airchamber 615 also illustrated as of r the usual cylindrical form, and theair-tubes 7 are conhected at their lower ends with the.

air-chamber in the usual manner.

; j The air-chamber is provided with a flata! bottom-portion 8, which extends inwardly from the cylindrical bodyof the air-chambe! so that its inner edge is adjacent the 5 in the oil-font. This air-chambe! maybe conveniently formed by drawin flat sheet-metal 'to the required The burner-cu 9is illustrated as of the l orm'soas to receive and e burner frictionally. After astheparts in the proper position as the margm o the metal formmg (the. top it of this o l-font is rolled upwardly and out+ wardly to form a seam. *This seam locks the'burner-c up in position in the usual than: new, but owing to the inward extension of Lifts 8 of the air-chamber the edze ian section of a portion of a tubnlar lantern embodying the present.

. bular lantern having the usual general orm,

of this portion of the air-chamber is also looked in the same seam, and accordingly gether at the opening 5 by a single joint, thus providing a positiye mechanical lock in addition to such solder or other means as may be used for securing the air-chamher in place.

surfaces I. preferably provide the top of the *oil-font with a slightly-recessed ortion 11 coextensive with the' bottom 0 "tl1e air-. chamber, the recess being produced in the operation by which the oil-font is stamped or drawn to shape.

. In order that the air-chamber mayyoccupy of the lantern, that is, the position in which the filling-neck 13 of the oil-font will be midway between the air-tubes, the top of the oil-font and the bottom of the air-chamber are provided with cotiperating recesses and projections 12 which insure the properassembling of the parts, and prevent relative rotation of the parts after they have been seamed together and before and durin the sweating operation. These recesses an projections maybe stamped in the metal in the course of the operations by which the parts just ascribed to them, they have the further useful function of increasing the area of chamber and the oil-font, and thus strengthening the union between these pants.

. I claim said opening and havin a bottom-portion tending inwardly to theedge of said opening, and a burner-cu the adjacent edges of Patented Jan. 23, 1912 all three of these members are secured-to retain the melted tin between the adjacent the proper angular position about the axis.

the contacting surfaces between the air-.

1. A tubular lantern having, in combinat1on, an oil-font with an opening in the top, an air-chamber of greater diament'e'r than lying upon the top of t e oil-font and ex are formed, and, in addition to the function the oil-font, the air-c amber, and thebumer- Correction in Letters Patent No. 1,015,398.-

cup being locked together bf a sin le seam around said opening, and tie oilout and the air-chamber being provided with cooperating projections and recesses to pre vent relative rotation of these parts.

2. A tubular lantern having, in combination, an oil-font with an opening in the top and a shallow recess surrounding said opening, an air-chamber of a diameter substantially equal to that of said recess and havin a bottom-portion seated in the recess and lying flat upon. the top of the oil-font, said bottom-portion extending inwardly to said opening, and a burner-cup with inturned Copies 01' this patent may be obtained for five cents each, by addressing the Washington, D. C.

all three of lower edge, the margin of the oil-font at said opening being rolled upwardly and out wardly over the adjacent edges of the airchamber and the burner-cup so as to join said parts with a single seam, and the oil-font and the air-chamber being provided with cooperating projections and recesses to prevent relative rotation of these parts.

ALBERT R. PRITCHARD.

Witnesses D. GURNEE, L. THON.

"Commissioner of Patenti,

[SEAL] It is hereby certified that in Letters Patent hi0 1,015,3 g n January 1912, upon the application of Albert R. Pritchard', of Rochester, New York; for i an improvement in Tubular Lanterns an error appears in the printed specifics. tion requiring correction as follows: Page 1, line 52, for the word this read the, and that the said Letters Patent should be read with this correction therein that the same may conform to the record of the case in the Patent Oflice.

C. C. BI-LLINGS, Acting Commissioner of Patents. V

Correction in Letters Patent No. 1,015,398.-

cup being locked together bf a sin le seam around said opening, and tie oilout and the air-chamber being provided with cooperating projections and recesses to pre vent relative rotation of these parts.

2. A tubular lantern having, in combination, an oil-font with an opening in the top and a shallow recess surrounding said opening, an air-chamber of a diameter substantially equal to that of said recess and havin a bottom-portion seated in the recess and lying flat upon. the top of the oil-font, said bottom-portion extending inwardly to said opening, and a burner-cup with inturned Copies 01' this patent may be obtained for five cents each, by addressing the Washington, D. C.

all three of lower edge, the margin of the oil-font at said opening being rolled upwardly and out wardly over the adjacent edges of the airchamber and the burner-cup so as to join said parts with a single seam, and the oil-font and the air-chamber being provided with cooperating projections and recesses to prevent relative rotation of these parts.

ALBERT R. PRITCHARD.

Witnesses D. GURNEE, L. THON.

"Commissioner of Patenti,

i l 1 i [SEAL] It is hereby certified that in Letters Patent lilo. 1,015,3 g an Ja a y 1912, upon the application of Albert R. Pritchard', of Rochester, New York; for i an improvement in Tubular Lanterns an error appears in the printed specifics. tion requiring correction as follows: Page 1, line 52, for the word this read the, and that the said Letters Patent should be read with this correction therein that the same may conform to the record of the case in the Patent Oflice.

C. C. BI-LLINGS, Acting Commissioner of Patents. V

Correction in Letters Patent No.

i i i i It is hereby certified that in Letters Patent No. 1,015,398, granted January 23, i 1912, upon the application of Albert R. Pritchard, of Rochester, New York, for

i an improvement in Tubular Lanterns, an error appears in the printed specification requiring correction as follows: Page 1, line 52, for the word this" read the;

, and that the said Letters Patent should be read with this correction therein that the i Signed and sealed this 20th day of February, A. D., 1912.

C. (J. BILLINGS,

Acting Commissioner of Patents.

same may conform to the record of the case in the Patent ()fiice.

[SEAL] 

